<?hh

class C {
  public function foo() {
    $x = 1 + 2*(3 - 2 / 5);
    $y = -(++$x) % (+ 10);
    $x -= $y++;
    $y /= --$z;
    $b = "hi"." hello";
    $c .= "hey there";
    $n = $x-- | $y & ($z ^ (~ $x) >> 2) << 3;
    $yes = ((boolean) $x && ($x > $y) || !($x >= $z)) ^ ($z < $y) || ($z <= $x);
    $maybe = $x == $y && $x === $y && $z != $x && $z !== $y;
  }
}
